1143451756 has 24 divisors (see below), whose sum is σ = 2120471136. Its totient is φ = 537657600.

The previous prime is 1143451723. The next prime is 1143451769. The reversal of 1143451756 is 6571543411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86806 + ... + 99106.

It is an arithmetic number, because the mean of its divisors is an integer number (88352964).

Almost surely, 2^1143451756 is an apocalyptic number.

It is an amenable number.

1143451756 is a deficient number, since it is larger than the sum of its proper divisors (977019380).

1143451756 is a wasteful number, since it uses less digits than its factorization.

1143451756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13689 (or 13687 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 1143451756 is about 33814.9634925132. The cubic root of 1143451756 is about 1045.6972083177.

It can be divided in two parts, 11434 and 51756, that added together give a triangular number (63190 = T₃₅₅).

The spelling of 1143451756 in words is "one billion, one hundred forty-three million, four hundred fifty-one thousand, seven hundred fifty-six".